The grisly discovery of about 150 human skulls in a cave in Chiapas, Mexico, initially led local police to think they had come across a crime scene when they first inspected the site in 2012. Now, it's clear that these victims didn't die recently; the skulls
Human remains, originally investigated by the police as a crime scene, have now been discovered to date from 900 A.D. and were possibly sacrificial victims